Machine for rounding and jointing the backs of books



C. S'CHRAMM A ril 28, 1931.

MACHINE FOR ROUNDING AND JOIN TING THE BACKS OF BOOKS FiledOct. 13, 1930 6 Sheets-Sheet 1 Apr 1931- c. SCHRAMM MACHINE FOR ROUNDING AND JOINTING THE BACKS OF BOOKS Filed Oct. 13, 1930 6 Sheets-Sheet 2 C. SCHRAMM April 28, 1931.

MACHINE FOR ROUNDING AND JOINTING THE BACKS OF BOOKS Filed Oct. 13, 1930 6 Shams-Sheet S C. SCHRAMM April 28, 1931.

1,802,355 MACHINE FpR ROUNDING AND JOINTING THE BACKS OF BOOKS Filed Oct. 13, 1930 6 Sheets-Sheet 4 a)? rv. km

April 28, 1931. c. SCHRAMM 1,802,355

MACHINE FOR ROUNDING AND JOIN'I'ING THE BACKS OF BOOKS Filed Oct. 15, 1930 6 Sheets-Sheet 5 A n ro? Ap 23, 1931; c. SCHRAMM V 1,802,355

MACHINE FOR ROUNDING. fin) JOINTING Tnis-BAcKs OF BOOKS Fild Oct. .13, 1 930 6 Sheets-Sheet 6 log Patented Apr. 28, 1931 UNITED STATES PATENT oF Ic-E CARL SCHRAMM, OF WEST HARTFORD, CONNECTICUE ASSIGNOR TO THE SMYTH MANU- FACTURING COMPANY, OF HARTFORD, CONNECTICUT, A CORPORATION OF CON- NECTICUT MACHINE FOR ROUNDING AND JOINTING THE BACKS OF BOOKS Apnlicationfiled October 13, 1930,. Ferial No. 4:88,?32.

. Unbound books which have been stitched and trimmed have flat backs and fiat front edges. Before being covered the backs, of booksare rounded and jointed and reinforcements and backlinings applied. This invention relates to a machine for rounding and jointing the backs of books.

The object of the present invention isto provide a machine which will receive stitched and trimmed books of various sizes and automatically feed them to tamping means which roundstthe backs and .coneaves the from edges, then carry them to a clamping press which tightly holds them while the backs are rubbed smooth and the joints along the edges of the back are formed, and iinallydischarge the rounded and jointed books. V

In the machine illustrated as embodying the invention the books are placed with their backs up, in a runway consisting of a track and two vertical side platesthat extendfrom end to end of the machine. The side plates are adjustable toward and from each other in order to accommodate books of different thicknesses, and the upper surface of the supporting track at the loading end is fiat and'for the remainder of its len th 18 convex. The track is ad ustable vertically to accommodale books of different width. A finger pushes a book placed in the runway alongthe flat section onto the curved section of the track and then swings out, returns and swings in for feeding a following book. Vhen the book reaches the curved section of the supporting track a tamping iron with a concave under surface is rapidly vibrated against its back. ,This

rounds the back and con-caves the front edge. A conveyer clamp then grips the sides and carries the book to a pressing clamp that is closed against the sides andvery tightly compresses the book. The conveyer clamp then opens and returns for a following book. After the press clamp is closed the back of the book is rubbed by an iron that has a concave under surface, and is moved back and forth on an arc transversely of the length of the book back. This smooths the rounded back and forms the joints at the edges. This being accomplished the press clamp. is opened and the book is pushed by afinger along the runway to the delivery. end of the, machine, and the finger is returned for the following book. 7 Q.

In the. accompanying drawings Fig.1 is an elevation looking toward the loading end of the machine. 2 is an elevation looking toward the discharge end. Fig; 3 is afront elevation. Fig. 4 is a vertical section approximately on the dotted line 4 on Fig. ,3. Fig. 5 is a detail view'of ihe .conveyericlamp. Fig. 6'is a detail View of'a feed finger. Fig. 7 is a horizontalsection'on dotted line 7 7 on Fig. 1'. Fig. 8 is a vertical section on approximately the dotted line 88 on Fig. 1. I *ig. 9 is a horizontal section on the dotted line 9-9 on Fig. 1. V The machine illustrated has a bed'l on which is mounted a frame having upright side walls2 andend walls 8 of less height than the side walls. Supported between the side walls and resting on the ends walls are two tables 4, with an opening between their inner edges. The runwaywalls 5 between which the bookspass, are fastened to which are movably'mounted in ways 7 on brackets v8 that extend from the bed outside of the frame side walls, 3, 7. lower ends of the arms 6 are connected by spindles 9 having right and left threads sb thatthe arms of each pair may be movet toward and from each other. The spindles are provided with gears 10 engaged by gears 11 one rod 12 that when turned will adjust the runway walls the same distance apart'at both ends, Fig. 7, to accommodate books of different thicknesses.

The track 18 at the bottom of the runway.

and on which the books move, is fastened at the loading end to the top of a post 14,.Fig.

1, at the discharge end to the top of a post pairs of vertical arms "6, the lower endsoi The which are engaged by gears 20 on a rod 21, so that by turning this rod the track may be adjusted up or down to accommodate books of different widths, Fig. 3. The to 3 of the track at the loading end is flat while the rest of the track has a convex upper surface. At the tamping station the track is provided withan anvil piece 22, Figs. 2, S, that has a curved upper surface and is removabie in order that anvils of varying Widths, depending on the thickness of the books, may be substituted.

Supported by bearings 23 on the brackets 8 and extending parallel with each other and with the runway, are shafts 24 and 25. Fastened to the shaft 24 is a toothed segment 26 which engages a gear 27 on the shaft 25. Fastened to the shaft 25 is an. arm 2 that is connected by a link 29 with a lever 2-5-1) which is actuated by a cam 31 on the cam shaft 32. The cam shaft is supported by bearings in the side walls of the frame ant extends parallel with shafts 24 and 25.

F astened to the cam shaft is a gear 33 which is en aged by a pinion 34 connected to a gear 3:) which mesnes with the pinion 36 that is connected with a great 37 driv'. bv a belt 38 from a suitable motor, Fig. 2.

his mechanism causes the shafts 24 and to, at the proper times, oscillate coincidently.

Turning with, but movable along the shaft- 24 near the loading end an arm 2-39, at the upper end of which is a feed finger ell). and turning with, but movable along the shaft 24 near the delivery end is an arm 41 with a feed finger 42, Fig. 8. Movable along 't e shafts 24 and 25 is a box comprising two plates 43 with connecting sleeves 44. F Attached to the under side of this box rack 45 that is engaged by a segment 46 which is attached to a segment 47 that engaged by a rack 48, Figs. 8, 9. The rack 48 is connected by a link 49 with a lever 5t) that is actuated by a cam 5i on the cam shaft, Fig. 1. The feed finger arms 23$) and 41 are ad ustably connected to each other by a rod. 52, Fig. 8, and this rod is connected with the box by an arm so that the reciprocation of the box will carry the feed fingers back and forth longitudinally of the runway.

Between the side plates 43 of this frame and turning on axles 54 supported thereby. are arms which at their upper ends have the conveyer clamp aws These arms are provided with inter-meshing segments 57 so that they will oscillate together. Springs 58 tend to close the conveyer clamp jaws. One of the convcyer clamp arms is connected by a link 59 with a rocker 6O fastened to the shaft 25, Fig. The feed fingers and the conveyor clamp jaws by the mechanism described are simultaneously oscillated for swinging the ill into and out of the runway and for closin and opening the conveyor jar-7s, and they are simultaneously reciprocated longitudinally of the runway for feeding a book from loading position to taniping position. conveying a book from tamping position to jointing po "ion, and from jointing position to the delivery end of the machine.

The press clamp jaws 61, over the top edges of which the backs of the books are ironed to form the joints, are fastened to the inner edges -of plates (52 that are movable horizontally toward and from each other in ways on the tops of the tables 4, Figs. 4 and 7. The outer edges of these slide plates are connected by toggle links 63 with backing blocks 64. The backing blocks are adjustable horizontally on the tables by means of screws 65 in order to acconnnodate the press plates to different thicknesses of books. These adjusting screws are provided with gears 66 engaged by gears 67 meshing with gears 68 which are engaged by pinions (59 on a rod 70 that extends across the machine, Figs. 3, 4, 7. By turning this rod the backing blocks, toggle links, slides and press clamp jaws may be moved in or out. The joints of the toggle links are connected by links 71 with angle levers 72 that are connected by a link 720, Fig. 4. The link 720 has a lug 73 which is connected with a link 74 jointed to the lower end of a lever 75 that is oscillated at the proper times by a cam 76 on the cam shaft, Figs. 3, 4. A spring 77 is arranged on the link 74 between the lug 73 and nuts 78 in such manner as to cushion the closing movement of the toggles, Fig. 4. \Vhen a book brought by the conveyer clamp jaws into jointing position the press clamp jaws are, by this mechanism, tightly closed againstthe book with their upper edges just below the back of the book.

A book placed by the operative. on the track and between the runway walls at the load end of the machine is engaged by the finger 40 and pushed along the track onto the tamping anvil 22, (the position of ihe book 79 in Fig. 8), where it is subjected to the action of the tamping iron 80. The tampin iron has a concavcd under surface and is cetachably fastened to the lower end of a plunger 81 that is vertically movable in a bracket 82 fastened to a side wall of the frame, Figs. 1, 8. Extending upward from the plunger is a threaded stem 82-5 on which is a grooved collar 84 that is engaged by a lever 85 which is rocked by a link 86 connected with a rocker arm 8'7 that fastened to a shaft 88, Fig. 1. Fastened to the shaft 88 is a lever 89 that is, at the prop or times, oscillated by a cam 90 on the cam shaft, Fig. 3. This cam is formed to cause the tamping iron to reciprocate several times during one cycle of the machine and pound the backs of the signatures down upon the anvil. As the uppersurface of the anvil is convex and the under surface of the tamping iron is concave, the back of the book is rounded by the pounding action-of the tamping iron. There is a spring 91 arranged between the plunger and its stem 88, Fig. 8, for cushioning the blows of .the tamping iron upon the back of the book.

After the back of the book has been rounded by the tamping iron' the conveyor clamp jaws 56 close upon the sides and the book is carried to jointing position, the position of book 92 in Fig. 8. At the same time the finger 40 pushes another book into tamping position. When a book reaches jointing position'the press clamp jaws are closed firmly against its sides by the power ful toggle mechanism described, and then the back of the book is subjected to the ironing action of the rounding and jointing iron 93, Figs. 4, 8. The jointing iron 93 has a concave under surface and is detachably fastened to vertically adjustable block 94 that by screws 95 is connected with arms 96 which are attached to or form a part of toothed segments 97. The screws 95 have gears 98 engaged byxgears 99. on a rod 100 that may be turned forraising and lowering the jointing iron with relation to the segments 97, Fig. 8. The toothed segments 97 turn on journals 101 whichare carried in hearings in the lower ends of arms 102. The axis of the journals 101 are slightly above the curved under surface of the jointing iron. The arms 102 are pivotally supported by bushings 103 mounted in blocks 104 that are vertically adjustable in the side frames of the machine;v Screws 105 pass through a cap 106 on the top of the frame and enter the blocks for V adjusting them vertically. These screws have gears 107 engaged by gears 108 on a rod 109 which may be turned so as to raiseor lower the blocks together, Figs. 4, 8. Plates 110 and clamp screws 111 are provided for locklng tne blocks after they have been adjusted.

The toothed segments 97 are engaged by toothed se ments 112 that are fastened to a shaft 113 which extends through the bush ings 103. A crank pin 11% is adjustably connected to one of the segments 112 by a screw 115, Fig. 8. This crank pin is connected by an adjustable link116 with. the upper end of a lever 117 the lower end 118 of which is engaged with a cam 119, Figs. 8, l. The edges of the arms 102 are engaged by rods 120 which are pressed against the 1 arms by cushioning springs 121, Fig. 4:. 'The action of the cam 119 through these connections swings the arms so they carry the jointing iron from slde to side over the back of the book, and at the same time the segments cause the jointing iron to turn and crush the edges of the book over the upper edges of the jaws of the-press clamps and thus form the joints along the back of the book. 7

' After the joints have been formed the press clamps are opened by the toggle mechanism and the finger 42 pushes the rounded and jointed book to' discharge position, the position of book 122, Fig. 8. At the same time a following book is carried by the conveyor clamp jaws from tamping position to jointing position, and another book is pushed by the finger 40 into tamping position. The feed fingers and the conveyer clamp jaws are swung out and in and reciprocated together so that the books are simultaneously transferred from one station to the other, and while one book is being tamped and roughly rounded another book is being ironed and jointed.

The conveyer clamp jaws grip the book after it hasbeen tamped and hold it from getting out of shape while they convey it from tamping' position to jointing position 'and until the toggles haveelosed the press clamp and the jointing jaws are tightly pressed against the sides of the book. 'The toggles moving equally on both sides hold the books central so that the joints on each side are formed uniform.

The invention claimed is:

1. A machine for rounding and jointing the backs of books which comprises a tamping iron for rounding the book backs, mechanism for reciprocating the tamping iron against the backs of the books, a jointing iron, mechanism for oscillating the jointing iron against the backs of the books, a press clamp with jaws over which the backs of the books are rounded by the jointing iron, mechanism for opening and closing. the press clamp, and mechanism for feeding books from loading position to tamping position, from tamping position to ointing position,

and from jointing position to discharge position.

2. A machine for rounding and jointing the backs of books which comprises a tamping iron for rounding the book backs,

mechanism forreciprocating the tamping ron againstthe backs of the books, a join ing iron, mechanism for oscillating the jointing iron against the backs of the books, a press clamp with aws over which the backs ofthe books are rounded by the jointing iron, mechanism for opening and 010s ing the press clamp, and mechanism for simultaneously feeding a book beneath the tamping iron and feeding a book between the press clamp jaws. I

3. A machine for rounding and jointing the backs of books which comprisesa tamping iron for rounding the book backs, mechanism for reciprocating the tamping 'iron against the backs of the books, a jointing iron, mechanism for oscillating the ointing 1ron against the backs of the books,

a press clamp with ja over which the backs of the books are rounded by the jointing iron, mechanism for opening and closing the press clamp, and mechanism for simultaneously feeding a book from beneath the tamping iron and feeding a book from betweenthe press clamp ans.

4. A machine for rounding and jointing the backs of books which comprises a tamping iron for rounding the book backs, mechanism for reciprocating the tamping iron against the backs of the books, a jointing iron, mechanism for oscillating the jointing iron against the backs of the books, a press clamp with jaws over which the backs of the books are rounded by the jointing iron, mechanism for opening and closing the press clamp, a finger for feeding a book from loading position to tamping position, a conveyer clamp for carrying a book from tamping position to jointing position, a finger for removing a book from jointing position to dischar e position, and mechanism for oscillating and reciprocating said 3 fingers and conveyer clamp.

A machine for rounding and jointing the backs of books which comprises a runway having horizontally adjustable side walls and a vertically adjustable track rail, :1 tamping iron for rounding the book backs, mechanism for reciprocating the tamping iron toward and from said runway, a jointing iron, mechanism for oscillating the jointing iron transversely of said runway, a

nress clamp having jaws over which the backs of the books are rounded by the ointing iron, mechanism for reciprocating the press clamp aws toward and from said runway, and mechanism for simultaneously feeding books along the runway from loading position to tamping position, from tamping position to jointing position, and from jointing position to discharge position.

(1. A machine for rounding and jointing the backs of books which comprises a tamping iron for rounding the book backs, mechanism for reciprocating the tamping iron against the backs of the books, a jointing iron, mechanism for oscillating the jointing iron against the backs of the books, horizontally movable slides carrying jaws over which the backs of the books are rounded by the jointing iron, toggle mechanism for opening and closing said slides, and 'nechanism for feeding a book beneath the tamping iron and feeding a book between the press clamp jaws.

'7. A machine for rounding and jointing the backs of books which comprises tamp- 'ng iron for rounding the book backs, mechanism for reciprocating the tamping iron against the backs of the books, a jointing iron, mechanism for oscillating the jointing iron against the backs of the books, mechanism for adjusting the pressure of the jointing iron against the backs of the books, a press clamp with jaws over which the backs of the books are rounded by the jointing iron, mechanism for opening and closing the press clamp, and mechanism for feeding a book beneath the tamping iron, and feeding a book between the press clamp jaws.

8. A machine for rounding and jointing the backs of books which comprises a tamping iron for rounding the book backs, mechanism for reciprocating the tamping iron against the backs of the books, a jointing iron, mechanism comprising swinging arms, inter-meshing toothed oscillatory segments, one segment being pivoted at the free ends of said arms and carrying the jointing iron and the other segment pivoted at the axis of said arms, and means for oscillating the latter segment, a press clamp with jaws over which the backs of the books are rounded by the jointing iron, mechanism for opening and closing the press clamp, and mechanism for feeding a book from beneath the tamping iron to and from the press clamp aws.

9. A machine for rounding and jointing the backs of books which comprises a tamping iron for rounding the book backs, mechanism for reciprocating the tamping iron against the backs of the books, a jointing iron, mechanism for oscillating the jointing iron against the backs of the books, a press clamp with jaws over which the backs of the books are rounded by the jointing iron, mechanism for openin and closing the press clamp, oscillatory shafts, means for oscillating said shafts, feed fingers and a conveyer clamp oscillated by but free to move longitudinally of said shafts, and mechanism for moving said fingers and clamp along the shafts, for feeding books from loading to delivery positions.

10. A machine for jointing the backs of books which comprises a ointing iron. meehanism comprising swinging arms, intermeshing toothed oscillatory segments, one segmentbeing pivoted at the free ends of said arms and carrying the jointing iron and the other segment pivoted at the axis of said arms and means for oscillating the latter segment, a press clamp with jaws over which the backs of the books are rounded by the jointing iron, mechanism for opening and closing the press clamp, and mechanism for feeding a book to and from the press clamp jaws.

11. A machine for rounding and jointing the backs of books which comprises a runway along which the books are fed, a finger for feeding books along the runway from loading end to tamping position, a tamping iron, mechanism for reciprocating said tamping iron against the backs of the books, a conveyer clamp for gripping and holding the books from, distortion after they have been tamped and carrying them to jointing position, a press clamp for gripping the books in jointing position, mechanism for opening and closing the press clamp, a ointing iron, mechanism for oscillating said jointing iron against the backs of the books held by said press clamp, and a finger for removing the books from jointing position to the discharge end of the runway.

12. A machine for rounding and jointing the backs of books which comprises a runway along which the books are fed, a finger for feeding books along the runway from loading end to camping position, a tamping iron, mechanism for reciprocating said tamping iron against the backs of the books, a conveyer clamp for gripping and holding the books from distortion after they have been tamped and carrying them to jointing position, a press clamp for gripping the books in jointing position, toggles for opening and closing the press clamp, a jointing iron, mechanism for oscillating said jointing iron against the backs of the books held by said press clamp, and a finger for removing the books from jointing position to the discharge end of the runway.

' 13. A machine for rounding and jointing the backs of books which comprises a run way, means for feeding books intermittently along the runway, jaws movable horizontally toward and from each side of the runway for clamping the books, toggle mechanism for moving said jaws against the sides of the books, a jointing iron, and mechanism for oscillating said iron against the backs of the books and rounding them over the I clamping jaws for forming the joints.

- CARL SCHRAMM. 

